Biscayne National Park weather in August
August in Biscayne National Park: sweltering, soaked, with clean air — a fair time to visit.
#12 of 12 months in Biscayne National Park · #515 of 604 destinations to visit in August · comfort 56/100 (tier D)
Updated June 2026 · climate normals from ERA5 reanalysis
Biscayne National Park climate normals — August
| Daytime high | 31°C / 87°F | 🔥 sweltering |
|---|---|---|
| Nighttime low | 27°C / 80°F | |
| Feels like (high) | 37°C / 99°F | |
| Rainfall | 181 mm / 7.1 in | ⛈ soaked |
| Rainy days | 26 days | |
| Humidity | 80% | 💦 very humid |
| Dew point | 25°C / 76°F | |
| Sunshine | 10.6 h/day | |
| Daylight | 13 h | |
| Wind | 17 km/h / 11 mph | |
| Air quality (US AQI) | 39 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Biscayne National Park?
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Biscayne National Park in August — FAQ
- Is August a good time to visit Biscayne National Park?
- August in Biscayne National Park: sweltering, soaked, with clean air — a fair time to visit. It ranks #12 of 12 months for Biscayne National Park on SeasonMap's comfort score (56/100).
- What is the weather like in Biscayne National Park in August?
- In August, Biscayne National Park averages a daily high of 30.7°C and a low of 26.6°C, with about 180.6 mm of rain over roughly 26.2 rainy days.
- What is the air quality in Biscayne National Park in August?
- Biscayne National Park has a mean US Air Quality Index of about 39 in August.